Men's ignore or Be a queen, but act like a bitch?

Warning: In the post was used information from real chat with one of my best guy-friends.

When somebody is jealous or envious - I don't care too much. I just don't feel. I am being cold-hearted on a surface as long as possible. But people still can insult me sometimes by ignoring, being late, irresponsible, not organized and not punctual.

Especially guys, whom I admire in real life and who's side/position I take most of the time are just killing me with their unexpected behavior. I still don't get it, when somebody sincerely says: "Let's keep in touch. I want to know you. I'll be happy to talk to you more." and then don't answer your mails for a long time with no reason for a delay or don't answer them at all.

One of my best guy-friends told me: "I might ignore a man, but never I would ignore a lady!" I hope everybody/majority to be like this.

Those guys are so pathetic, I swear!!! They are just irresponsible. Now everybody is scared to take a responsibility.

I don't want to judge these guys, but I'm just pissed off (can you believe this) because I don't get their behavior. They were nice when we met in person, but they don't even answer if they checked a mail few weeks ago. Even one guy, who is not the best personality in my opinion, did answer my mail. Who is much more intelligent then? 

That guy wrote that he's busy now and can't answer too often, but he answered and explained that he's busy.

He was very honest. But we are all busy and we should never forget about our good friends. 

You know, I, honestly, don't want to be disappointed in guys at my age. What I'll do when'll be older?! 

But I'm pissed off by being treated like this. Being treated like this just because I DO CARE about the person. Sometimes I just want to write to them that it was mean and to see their reaction...

And it's not always only about the mails. Even in real life guys show their interest and when you admit it they just start to ignore you. You'll say "Everybody loves a challenge.", so should women act like a bitch to be loved? Every man wants a good girlfriend, but they make us act like bitches...